Re: [avr-chat] BLDC control with ATmega128?

[David Brown]

> Has anyone attempted this? I was hung up on the fact that there are 6
> 16-bit PWM generators, but then realized I only needed 3 (plus 3
> GPIOs), and I think it can be done with a single PWM, 6 GPIOs and
> some external logic.
>
> In any case, has anyone done this, and can you offer any advice? Thanks!
>
> --
> Rick
>

It should be perfectly possible (assuming you have hall-effect sensors on
the motor).  I don't think there is any real advantage in using PWM for both
the top side and bottom side transistors for a BLDC motor (as distinct from
a PMSM, where you *do* need them).

mvh.,

David